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Amino acid requirements in elderly males and females >60 years of age determined using the IAAO method.
| Nutrienta | Young males | Elderly males (>60 years old) | Elderly females (>60 years old) | Reference |
|---|---|---|---|---|
| Protein (g/kg/d) | 0.93 | 0.94 | 0.96 | (54–56) |
| Phenylalanine (mg/kg/d) | 9.1 | 9.3 | 8.4 | (57) |
| Leucine (mg/kg/d) | 39 | 77.8 | 78.2 | (58) |
| Methionine (mg/kg/d) | 13 | 26.2 | 17.1 | (59) |
| Methionine + Cysteine (mg/kg/d) | 4.5 | 5.4 | 4.6 | (60) |
Values described are mean amino acid/protein requirements.
